Braiding machine



Patented Mey 29, 1923.

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PTW" @hhiie CARL Tossa, or BERLIN-KARLSHORST, GERMANY. BRAIDING MACHINE Application filed January 31, 1921. Serial No. 441,422.

(GRANTED UNDER THE PROVISIONS F THE ACT- O MARCH 3, 1921, 41 STAT. L., 1313.)

To al? who/m, it 'may concern Be it known that I, Cain, Tonen, a citizen of Germany, residing at Berlin-Karlshorst, Prinz Adalbertstr. l0` Germany. have invented certain 'new and useful Improvements in Braidiug Machines (for which I have obtained a patent in Germany based on' an application filed on June 8, 1917; in Switzerland based o n au application led March 15, 1920; in Czechoslovakia based on an application filed May 7, 1920; in Italy. based on an application filed June 30, 1920; in Bel- 4g'ium based on an application tiled Febr. 10` 1920; in Luxembourg' based on an aplication filed Febr. 5. 1920; in- Austria iiased on an application tiled Jan. '22. 1920; in France based on an application filed Febr. 19, 1920; in Holland based ou an application filed March 11, 1920; and in Great Brit- 20 ain based on an applica-tion tiled July 2,

1920), of which the followinpr is a specification, reference beiner had therein to the accompanying drawing. y

My invention relates to braidin; r machines having bobbin slides continuously moved by a roller system and more particularly consists in an improvement of the means'for movingr the bobbin slides and pass'ing r the outer threads through ,the roller system.

The roller system in this type of machine has well-known advantages over former types in that there are no 'segmentaltoothed wheels or couplings` and in that 1t is proof against the falling in of torn threads and thread ends; it has however the d1sadran- "tage that the outer threads in the path beneeth the inner bobbins when passing be.-

tween the driving roller and slide roller (bobbin roller) are subjected to considerable pressure.

In order to prevent so far as possible damage to the outer threads, the rollers are in a well known manner rovided at their circumference with a yieldingmaterial, such as rubber, leather 'or the like; this does not however substantially diminish the pressure on the outer threads as the power necessary to move the slides transmitted from the drivling rollers'to the slide rollers is not altered thereby. l It has been, found in machines of this y t pe that .the cause of the great pressure on t e threadwhen the slide track is constructed inthe usual manner (the slide track opposes considerable resistance toI the movement of .the slides and so to the driving and slide rollers) lay in the fact that the slide track formerly employed in combination with the said roller system was stationary; it was contained in a stationary casing which was provided with a waved slot corresponding with the waved path of the outer threads. The slide track ring was for this purpose formed of at least two completely separated portions; the upper portion could be connected to the machine frame only outside of the outer bobbins and the lower portion only inside of the outer bobbins which revolve about the braiding axis. It was ionnd in practice that the slide track segments situated alternately in said upper and lower portions could .not be made to register with such exactness that the slides could without shock pass :from the upper to the lower portion and vire versa; this is due to the fac-t that even though the trackwere formed simultaneously on the separated parts, the manufacture is difficult on account ot' springiness and the mounting of the separated parts is a, source of error.

In the well-known machines o1 this type having eight inner bobbins and eight slides together passing 64 times from one ring to the other, there occur during one revolution only about the braiding' axis i. e., with only 160 revolutions per minute in round numbers 10,000 passages per minute making in round numbers six million passages in ten hours, it will easily be seen that a small deviation only of the segments from each other *would resultv in shocks to the slide which shoe is would dissipate considerable power owing to their great number occurringr per unit of time. Both this power and the power necessary to overcome the normal friction of the slide must be transmitted by the driving; and slide rollers to the alici-aa` Ylhe total of these forces causes great pressure on the cuter threads when passing'between the rollers.

The roller s stem driving the inner bobbins is there ore combined with a wellknown slide track which turns in the same direction as the outer threads revolvin about the braiding axis; the slide trac serves as a bearing to the slides which turn in opposite direction to the inner bobbins revolving in the opposite direction; this as is known renders 1t posible tto-connect all the slide track segments to an adjacent common base whereby the slide tracks can easily be made with such exactness that the slides will move without shock; this obviates any absorption of the power to be transmitted by the rollers which Was hitherto absorbed vby the shocks of the slides in their track.

It will then only be necessary to transmit to the driving and slide rollersl 'the power required to overcome the normal friction of the slide which results in relieving the outer threads passing between the rollers.

The novelty of my invention therefore Well-known type having a roller system, my'

machine possesses the further considerable advantages that the threads are further relieved anda shifting ot' the roller system.

relative to the temporary position of the outer threads is avoided when the `inner bobbin slides and the slide track are' arranged between thel inner bobbins and the braiding axis.

This further relief ot the thread is obtained by arranging the slides and the slide track'between the inner bobbins and the braiding axis as the slides and track can be brought nearer to such axis; the t'rictional resistance therefore of the slides against` their track is considerably lessened because of the considerably diminished centrifugal force of the slides; the'rollers therefore which drive the slides and between which the threads pass ialso exert a smaller pressure upon the rolledrthread than it the slide track were arranged"putside olE theta/mer bobbins. i LMI f The relative displacementiol' the roller l system occurs when, the toothed wheels or other machine elements which drive the roller system are omitted. In that caseythe rollers would remain behind andthe threads be deflected out o't' their position thus being stretched. The wea r of the toothed wheels or other machine elements is considerably lessened i'.. that theslides and the slide track 'are'arranged inside of the inner bobbins as near to the braidingaxis aspossible. Thus, the power necessary toudisplace the slides is considerably' reduced and thereby also the wear of the' nia'ehine elements, While Athe `position of the'rollers relative to the outer threads remains unaltered.

Br'aidin'g 'machines with oppositely revolving rows of bobbins in which the inner hobbin slides and the slide track are arranged between the inner bobbins and the braiding axis are indeed known; in the presentease, however, there is no roller system foi-operating the inner bobbins and for leading the outer threads rotating in the opposite direction between the rollers of the roller system rolling on each other.

My invention is illustratedrin the accompanying drawings in which Figure 1 is a vertical section through a machine having two curved tracks and in which to thel right ofthe axis a driver roller and a slide roller are omitted for the sake of clearness.

Fig. 2 is a plan of the left halt of Figure 1'; s

Figure 3 is a view showing the internal portions of the machine shown in Figure 1 in which can be seen the driving rollerswith the slide rollers and slides as well, as the slotted slide track; Figure 4 is an elevationl of the slide track ring, und Fig. 5 -an enlarged reproduction of the righthand side 1 is a base plate provided at its centre with a stationary sleeve 17 upon which revolves the hub 19 of a brake drum 2l. Fast to tl e hub 19 is the'outer rotating carrier 7 carrying the outer bobbins 18, threaded guides 3, 4 and 5 and a slotted ring 2l rotating with it. The said parts receive their 'revolving movement about the braiding axis through the bevel wheels l-l and 36 mounted respectively on the hubl) and the shaft 29 driven by means of the belt pulley 39.

The slides 37 rotate along the guide track 4l provided on ring 2A and in opposite d1- reetion thereto. They carry the inner bob-` bins 2() and are driven by a roller system in the following manner. The bevel wheel 3G also in mesh with the bevel wheel A12 arranged opposite the bevel wheel 34. The bevel wheel 42 thus rotates in opposite direction to the bevel wheel 34 and is mounted on a. hollow spindle 25 revolving within the .stationary sleeve 17. the upper end of the spindle 25 on which plate are mounted pivots 2T carryingT arms 28 movable thereon` llaeh arm carries a driven roller 32 and the larger driving roller 30. i

The driven roller 32 on the rotation of the plate 26 runs on track 33 whichis 26 is a plate lixedon t mounted on the sleeve 17 andistheretore stationary.,=. Both rollers 32and 30 besides their revolving movement about the braiding axis, are rotated about their common axis. Both the revolving movement and the rotating movement-of the roller 30 are' transmitted tothe slide rollers 23, 'which are mounted on stationary'spindles 22 on, the

slides 37 which carry the vinner bobbins-20g the 'revolving movement of the plate 26 about the braiding axis is transmitted to the rollers 23 and thereby to the slides 37 with their bobbins 20. The xdirection ofl rotation of the rollers 30, the 4slide-rollers I32 and ot the advancing movement imparted to the slides 37 is indicatedvby the arrows in Fig. 3, whereas the paths ofthe threads from the outer bobbins 18 are indicated b the broken lines in Fig. 2. 1

Figure 4 shows the slotted ring 24 in elevation in which construction the track ai is castl with the casing. This need notbe the case, however, thus for the sake of economy the track 411 may consist 'of a bronze segment and the casing 2a be made ot cast iron. The essential point of the Well-known revolvingslide track segments is thatall such segments should have a common contiguous basis at thel underside of the casing 24; this is because the outer. threads only receive to and tro movements corresponding to the slots 40 relative to the ring While both the outer threads and the casing move about the braiding axis in the same direction in contradistinetion to the Well-known construction in which the outer threads have both a toand' fro movement and a revolving movement about the braiding axis relative to the stationary casing,

i. e., a Wave as on a fixed casing which was .completely separated into two parts.

at I claim 1S:

1. In a braiding machine a plurality of l outer bobbins, a rotatable carrier therefor, a plurality of'slides adapted to revolve relative to'said -carrier in opposite direction thereto, inner bobbins carried by said slides, a set ot' rollers for operating the said slides,

a track on the said carrier for the said slides and means for rotating the said set of rollers.. 2. In a braiding machine, a plurality of 'outer bobbins, a rotatable carrier therefor,

affixed iny signature in the presence of tw Witnesses. 1 CARL Tonen.

Witnesses Rien. Miiwimonn,l BERNHARD GRTZ. 

